[Webkit-unassigned] [Bug 209678] API::PageConfiguration may have conflicting preference values between WebPreferences and WebPreferencesStore::ValueMap instance variables

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=209678

--- Comment #4 from David Kilzer (:ddkilzer) <ddkilzer at webkit.org> ---
Created attachment 394755

  --> https://bugs.webkit.org/attachment.cgi?id=394755&action=review

Patch v2 (check EWS)

This is literally the dumbest patch that would "fix" the issue.  I want to see what fails.

The obvious failure point would be a crash if API::PageConfiguration::m_preferences isn't set before m_preferenceValues is used.

We probably need to require a WebPreferences object when creating an API::PageConfiguration object--or construct a default WebPreferences object--to prevent such the crash if it occurs.

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